Compare Elements
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Ar
Argon
#18 · Noble Gas
| Mass | 39.948 u |
| Density | 0.0017837 g/cm³ |
| Melting | 83.8 K |
| Boiling | 87.3 K |
| Ionization Energy | 1520.6 kJ/mol |
| Atomic Radius | 71.0 pm |
| Block | p-block |
| State (RT) | Gas |
| Config | [Ne] 3s2 3p6 |